What is the meaning of cryptanalysis?

(DoD) The steps and operations performed in converting encrypted messages into plain text without initial knowledge of the key employed in the encryption.
Department of Defense Dictionary of Military and Associated Terms. 31 January 2011.
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APAMilitary Dictionary (DoD). (2011). cryptanalysis. Retrieved September 21, 2026, from http://smartdefine.org/cryptanalysis/definitions/1961183
ChicagoMilitary Dictionary (DoD). 2011. "cryptanalysis" http://smartdefine.org/cryptanalysis/definitions/1961183 (accessed September 21, 2026).
HarvardMilitary Dictionary (DoD) 2011, cryptanalysis, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/cryptanalysis/definitions/1961183>.
MLAMilitary Dictionary (DoD). "cryptanalysis" 4 April 2011. Web. 21 September 2026. <http://smartdefine.org/cryptanalysis/definitions/1961183>
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